Home / 10,979.30-16,555.07-10,060.76

Finding the Fourth Proportional to 10,979.30, 16,555.07 and 10,060.76

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Solution

The fourth proportional to 10,979.30, 16,555.07 and 10,060.76 is: 15,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.30 : 16,555.07 = 10,060.76 : x
  2. Step 2: Convert to fraction form
    10,979.30/16,555.07 = 10,060.76/x
  3. Step 3: Cross multiply
    10,979.30x = 16,555.07 × 10,060.76
  4. Step 4: Simplify right side
    10,979.30x = 166,556,452.97
  5. Step 5: Solve for x
    x = 166,556,452.97/10,979.30
  6. Step 6: Final answer
    x = 15,170.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.